Bucket for deep-well pumps



A. A. BARTON.

BUCKET FOR DEEP WELL PUMPS. 'APPLICATION FILED sEPT.23.19I8.

Patented Feb. 1, 1921.

ABCHILIIES- A. BARTON, OF GLENDALE, CALIFORNIA.

Bucxnfr non DEEP-WELL Puurs.

Specication o! Letters Patent.

Application led September 23, 1918. Serial No. 255,385.

fluids from considerable depths, these pumps being known in the art asdeep well pumps.

In such pumps it is standard practice. at the present time to provide abucket having inner and outer seats on which a clapper is seated thiscla per sliding freely on a valve stem or rod. ne variation of such abucket is shown in the patent to S. M. Fulton, 1,164,178, patentedDecember 14, 1915. In such a bucket the inner seat is necessary as theclapper must be loose enough to slide freely on the valve stem and ifmade a loose lit water will pass downwardly between the clapper and thestem unless this is prevented by an inner seat. This pas sage of wateroccurs whenever the inner seat starts to leak with the result that thestem and clapper are rapidly eroded. The standard forms of bucket andvalve as used in deep well pumps therefore give considerable trouble andvery rapidly become inefficient.

The principal object of my invention is to provide an improved form ofvalve clapper for use in such a pump.

Further objects and advantages will be made evident hereinafter.

Referring to the drawings, which are for illustrative purposes only,

Figure 1 is a side elevation, partly in section, through a deviceshowing one embodiment of my invention.

Fig. 2 is an enlarged view of the preferred form of valve.

Fig. Sis a cross-section on line 3-3 of Fig. l, being viewed in thedirection of the arrow.

Fig. 4 is a cross-section on line 4 4 of Fig. 1, viewed in thedirection-of the arrow.

In the form of my invention illustrated in these drawings, a pump barrel11 is shown inwhich is placed an u per bucket 12 and a lower bucket 13.ach of the buckets consists ofa s ider 14 having a central hub 15. Formeon the exterior of each of the spiders 14 is a cylindrical machinedsurface 16 on which cylindrical spacing rings- 17 slide. Cupleathers 18are placed between the spacing rings 17 the lower cupleather pressingagainst a flange 19 formed on the spider 14 and the' u per spaclng ringbeing forced downwardly y a nut 2O threaded on the spider 14.

Secured in 4the upper portion of the bucket 12 is a seat 21 which ispreferably formed of bronze or the like, this seat being secured inplace by a threaded set screw 22. Turned to make a liquid tight contactwith the seat 21 is a valve or clapper 25, this clapper having a centralcavity 26 in which a series of cupleathers 27 is laced. The cupleathers27 are held apart y spacing rings 28 and are locked in place'by a glandnut 29, the lower cupleather 27 pressing against a shoulder 30 formed onthe clapper 25. A conical, helical spring 31 pressesagainst the top ofthe clapper 25, and in the case of the lower valve presses against acollar 32 in which is secured a solid -socket stem 33. This stem has aturned shoulder 34 on which the hub 15 of the lower bucket is pressed,this shoulder terminating in a head 35 at the lower end and in athreaded extension 36 at the upper end on which a retaining nut 37 isthreaded.

Secured in the upper end of the collar 32 is a pump rod 38, this pumprod passing `throu h a hollow bucket stem 39 which is provi ed with aturned shoulder 40 on which the hub 15 of the upper bucket is pressed.The turned shoulder 40 terminates in a head 41 at one end and in athreaded extension 42 at the other on which a nut 43 is threaded. Thespring 31 of the upper bucket presses against a collar 44 threaded onthe outer end of the hollow bucket stem 39, 'this collar also having anouter pump rod 45 secured in the upper end thereof.

The method of operation of the invention is more or less obvious. Therods 38 and 45 are reciprocated alternately by means of a suitable pumphead, water being supplied to the bottom of the pumpbarrel 11 and movedupwardly by each valve in turn. On the downward stroke of either bucketthe clapper 25 of that bucket is lifted against the tension of thespring 31 and water flows between the clapper and the seat 21. 0n thePatented Feb. 1, 1921.

upstroke the clap er 25 seats solidly and lifts the Water. he `frm ofconstruction shown is similar to the standard type of bucket nowemployed, but has certain novel features which will now be pointed out.

In the first place, the clapper 25 makes a water tight closure at onlyone point, namel against the seat 21. This is made posslb e by the useof the cupleathers 27 which make a tight closure between the clappers 25and the sleeve 39 on one hand and the rod 33 on the other. Thesecupleathers are so placed, as will be' seen from the drawing, that theyare forced tight by water pressure from above andare relieved by waterpressure from below. As a result of the bucket arrangement of thecupleathers, the clapper, when the bucket is lifting, forms a very tightclosure and whenever the bucket 1s dropping the clapper readily liftsdue to the release of the pressure on the cupleathers 27.

It will be noted that the cup leathers 27 form a water tight butfiexible joint between the' clapper 25 and the rod 33. Certain new anduseful results are produced by this construction which may be enumeratedas follows:

a.V Only one seat for the clapper is necessary, the inner seat commonlyfound on deep well pumps being omitted. This inner seat, which instandard pumps 1s necessarily of 4 small area as compared to theouter'seat, is

always the first to leak and by its omission one fruitful source oftrouble is eliminated. As the travel of the clapper on the rod 33 issmall the cup leathers 27 wear very little and need not be renewed forlong periods.

b. In the event that the outer yseat is not truly concentric, or notlocated in a plane truly perpendicular, to the rod 33 the closure of theclapper on the valve seat is nevertheless perfect as the cup leatherswill yield sufiiclently to allow the cla per to seat.

c. Thel absolutely tight c osure of the cup leathers along the rod andprevents this rod from being cut away by such leakage.

d. As the cup leathers 27 fit tightly around the rod 33 they positivelyguide the clappercausing it to seat evenly all around without gaging'theseat. Where a loose two seated clapper is used the edge thereof catchesin the seat and tends to metaL e. The'soft cup leathers fitting tightlyaround the rod tend to prevent sand or gravel from getting into the-space between the cup leathers and the rod and thus prevent the clapperfrom being jammed open as often occurs with a two seated clapper fittingloosely around itsrod.

A further novel feature of my invention is y27 on the rod 33 preventsleakage the use of the conical helical spring 33 afranged as shown. l

A still further novel arrangement is the insert seat 2l, the peculiarmethod of se curing the buckets on the rod 34.-V and the sleeve 39, andthe method cu leathers 18 on the exterior of the barrel.

l, hile I have particularly described my invention as used in deep wellpumps it is understood that I do not limit my invention to the formshown but the same may be used in various forms of pumps in which avalve or clapper is used on buckets.

What I claim' is j l. A bucket structure for use in deep well pumpscomprising a cylindrical bucket; a seat formed on the top of said bucketabout an opening extending therethrough; a bucket stem extending throughsaid opening, the entire weight of said bucket being carried by saidstem; a clapper sliding on said stem, said clapper seating in fluidtight relationship on said seat; and flexible means for making a fluidtight joint between said clapper and said stem.

2. A bucket structure for use in deep well pumps comprising acylindrical bucket; a seat formed in said bucket about an openingextending therethrou h; a bucket stem extending through said opening,the entire weight of said bucket belng carried by said stem,y a clappersliding on said stem, said clapper seating in fluid tight relationshipon said seat; and flexible packing in said clapper about said stem.

3. A bucket structure for use in deep well pumps comprising acylindrical bucket; a seat formed on the top of said bucket about anopening extending therethrough a bucket stem extending through saidopening, thc

l entire weight of said bucket being carried by said stem; a clappersliding on said stem, said clapper seating in fluid tight relationshi onsaid seat; spring means for forcing sai clapper against said seat; andflexible means for making a fluid tight joint between said clapper andsaid stem.

4. A bucket structure for use in deep well pumps comprising acylindrical bucket; a seat formed in said bucket about an openingextending therethrou h; a bucket stem extending through sai opening, theentire weight of said bucket being carried by said stem; a clappersliding on said stem, said clapper seating in fluid tight relationshipon said seat; spring means for forcing said clapper against said seat;and flexible packing in said clapper about said stem.

In testimony whereof, I have hereunto set ARoHILLs A. BARTON.

of securing the

